JP6974852B2 - System boot control method, system boot control program, and computer system - Google Patents

Description

The present invention relates to a system startup control method, a system startup control program, and a computer system, and in particular, a system startup control method, a system startup control program, and a computer system for avoiding system malfunction due to dust from the outside. Regarding.

In an environment that is not significantly affected by dust, no dustproof measures have been implemented for computer systems. In a computer system that does not implement such dustproof measures, dust may accumulate in the device without knowing it, causing a malfunction due to the dust. Further, in a computer system operating in a dusty environment, a dustproof filter is mounted on the intake port of the device as a dustproof measure. However, clogging of the dustproof filter may affect the cooling inside the device.

Various measures have been proposed to solve the above-mentioned problems.

For example, Patent Document 1 describes a method of monitoring various sensors while an OS (Operating System) is operating in a computer with a touch screen (panel computer) and notifying the user with an alarm when an abnormality is detected. .. Since the panel computer is integrally formed and the mechanically operating parts are not exposed, OA (Office Automation) may occur when the ambient temperature is high, or when there is a lot of vibration, high frequency noise, dustproof, etc. ) It can operate normally even if the surrounding environment is poor compared to the installation location of the computer in the field. However, even a panel computer cannot operate normally if the surrounding environment deteriorates further. Therefore, the panel computer is equipped with a system monitoring function that keeps self-diagnosis even while the panel computer is operating, and monitors predetermined items such as temperature and power supply voltage while the panel computer is operating. Anomalies can be detected before the panel computer goes down.

Further, Patent Document 2 urges measures such as dust removal by satisfactorily detecting and notifying the state of dust accumulation, and prevents inconveniences such as computer failure and shortened life. "Notification device" is disclosed. In Patent Document 2, the housing of the personal computer is provided with an intake port and an exhaust port. A filter is attached to the air intake. A fan is arranged inside the air intake. A CPU (Central Processing Unit) and various other parts are arranged in the ventilation path from the intake port to the exhaust port, and downstream of these are an optical sensor and a transparent pocket (dust) that are part of the dust accumulation notification device. Measurement model) and are arranged. The optical sensor has a light emitting unit and a light receiving unit. The optical sensor detects the presence or absence of foreign matter that blocks light between the light emitting unit and the light receiving unit.

By following the program, the control unit realizes the discriminating means that is a part of the dust accumulation notification device and the notification means. The discriminating means discriminates the dust accumulation state in the housing based on the measurement result of the optical sensor. The notifying means causes the display to display information based on the discrimination result of the discriminating means. In the notification process when the dust accumulation level is the final level, the personal computer is forcibly shut down by telling that it will be shut down because there is a risk of ignition. The operating state of the motor that rotates the fan may be controlled according to the dust accumulation level.

In general, an information processing device such as a personal computer (PC) is equipped with a system program called BIOS (Basic Input / Output System) as firmware for controlling hardware.

In detail, the operating system (OS) does not perform all the processing on the PC. There is a program built into the non-volatile memory (ROM (Read-Only Memory)) of the motherboard in advance in the PC, and this program is called BIOS. The ROM incorporating this BIOS is called a BIOS-ROM. The BIOS is the first program to be started after the power of the PC is turned on. The OS installed in the HDD (Hard Disc Drive) or the like is called by the BIOS, loaded into the RAM (Random Access Memory), and started.

More specifically, when the power of the PC is turned on, the CPU first executes the BIOS in the BIOS-ROM. In the following, it will be described that the CPU executes the BIOS as if the BIOS executes the BIOS. The BIOS first initializes the cache and registers inside the CPU, and switches the operation mode to the 16-bit mode.

Subsequently, the BIOS accesses various controllers on the motherboard, checks the status, and issues an error if there is an unusable element. The various controllers are, for example, a CPU, a memory controller, an external cache memory, an interrupt controller, a video controller, a real-time clock, a parallel / serial port, a disk controller, a keyboard controller, and the like.

When each controller is operating normally, the BIOS performs "POST (Power On Self Test) processing". The POST process is a process for detecting, initializing, and setting peripheral devices such as a video, keyboard, memory, mouse, HDD, and parallel / serial port. By executing this POST process, peripheral devices can be used.

When the POST process is completed, the BIOS designates the boot media according to a predetermined priority. The boot media is a medium in which the boot target OS is recorded. The BIOS that determines the boot media loads the OS loader in the first sector of the media. The OS loader is a program that detects and starts the OS. This completes the BIOS boot process, and after that, the OS loader loaded in the memory such as RAM loads the OS main body from the HDD and starts the OS.

In this way, the BIOS is executed when the power of the information processing device is turned on, and is necessary to start the OS such as hardware initialization based on the BIOS setting information in which various setting items and the setting values are associated with each other. Processing is performed. As a setup utility for changing the BIOS setting information, for example, a setting screen called a BIOS setup menu is known.

The newly defined specifications for the BIOS booting the OS are called UEFI (Unified Extensible Firmware Interface). UEFI is defined to solve the following problems in BIOS.

1) Due to the memory space limitation of 1MB (megabytes), it is difficult to enhance the system functions including security.
2) Every time a new boot device such as a disk connected to Ethernet (registered trademark) or USB (Universal Serial Bus) is added, the boot loader of the OS must be changed.
3) It is necessary to develop the firmware with the assembler for each motherboard.

In addition, a chipset is known as a part of a PC attached to a motherboard. Chipsets are also known as bridges. The reason is that the chipset plays a role of bridging the equipment mounted on or connected to the PC. For example, the chipset sends the data processed by the CPU to each device and processes each device.

Japanese Unexamined Patent Publication No. 2000-07592 Japanese Unexamined Patent Publication No. 2014-002593

However, the measures disclosed in Patent Documents 1 and 2 have the following problems.

Patent Document 1 makes no mention of a deterrent function at system startup. Further, in Patent Document 1, it is stated that the target panel computer is unlikely to malfunction even in an environment with a large amount of dust. Therefore, the panel computer disclosed in Patent Document 1 does not give any consideration to the dust environment.

Patent Document 2 only describes the notification process in the state where the system is operating. In other words, Patent Document 2 does not disclose or suggest dustproof measures at system startup. Further, Patent Document 2 discloses a technical idea on the premise (essential) that a filter (dustproof filter) is attached to the intake port. In Patent Document 2, it is described that "the operating state of the motor that rotates the fan may be controlled according to the dust accumulation level." However, how to specifically control the operating state of the motor. Neither disclosure nor suggestion is made as to whether or not to do so.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a system startup control method capable of avoiding a system malfunction due to external dust at the time of system startup.

In order to achieve the above object, as one aspect of the present invention, the system startup control method is executed in a computer system covered with a housing having an intake port and an exhaust port at the time of system startup, at the time of system startup. a control method, wherein the computer system includes a control unit and for controlling the computer system; the housing of the computer system; dust sensor and for monitoring the dust state of the housing in the body of the computer system A fan for cooling the inside; a fan control unit for controlling the fan; an error notification unit for notifying an error; A step to be executed; a step of acquiring a dust sensor value indicating the dust state from the dust sensor; a step of acquiring a dust threshold of the dust sensor; a step of comparing the dust sensor value with the dust threshold; When the dust sensor value is larger than the dust threshold, the fan control unit is used to stop the fan; after the fan is stopped, the error notification unit notifies the error; Includes a step of shutting down the computer system after notification;

As another aspect of the present invention, the system start-up control method is a system start-up control method executed by a computer system covered with a housing having an intake port and an exhaust port at the time of system start-up. the computer system, controller and for controlling the computer system; fan for cooling the housing interior of the computer system; and dust sensors for monitoring dust state of the housing within the body of the computer system And; a fan control unit for controlling the fan; a storage unit for holding a dust threshold management table stored in pairs of the rotation speed of the fan and the dust threshold of the dust sensor; and for notifying an error. The system startup control method includes an error notification unit; a step of executing initialization of the control unit; a step of acquiring a dust sensor value indicating the dust state from the dust sensor; and a fan control unit. The step of acquiring the rotation speed of the fan from; and the step of acquiring the dust threshold of the dust sensor corresponding to the acquired rotation speed of the fan with reference to the dust threshold management table; the dust sensor value and the above. A step of comparing with the dust threshold; a step of stopping the fan using the fan control unit when the dust sensor value is larger than the dust threshold; and an error caused by the error notification unit after the fan is stopped. A step of notifying the computer system; and a step of stopping the computer system after the notification of the error;

As another aspect of the present invention, the system start-up control program is a system start-up control program for causing a computer system covered with a housing having an intake port and an exhaust port to execute the system start-up control program. the computer system includes a main control unit and for controlling the computer system; for cooling the housing interior of the computer system; dust sensor and for monitoring the dust state of the housing in the body of the computer system A fan; a fan control unit for controlling the fan; an error notification unit for notifying an error; the system startup control program executes initialization of the main control unit on the computer. A procedure for acquiring a dust sensor value indicating the dust state from the dust sensor; a procedure for acquiring a dust threshold of the dust sensor; a procedure for comparing the dust sensor value with the dust threshold; A procedure for stopping the fan by using the fan control unit when the dust sensor value is larger than the dust threshold; a procedure for causing an error notification by the error notification unit after the fan is stopped; and a procedure for notifying the error. Later, the procedure for stopping the computer system and; are executed.

As another aspect of the present invention, the system start-up control program is a system start-up control program for causing a computer system covered with a housing having an intake port and an exhaust port to execute the system start-up control program. the computer system includes a main control unit and for controlling the computer system; for cooling the housing interior of the computer system; dust sensor and for monitoring the dust state of the housing in the body of the computer system A fan; a fan control unit for controlling the fan; a storage unit that holds a dust threshold management table that stores a pair of the rotation speed of the fan and the dust threshold of the dust sensor; and a storage unit for notifying an error. The system startup control program comprises an error notification unit; a procedure for executing initialization of the main control unit to the computer; and a procedure for acquiring a dust sensor value indicating the dust state from the dust sensor. And; a procedure for acquiring the rotation speed of the fan from the fan control unit; and a procedure for acquiring the dust threshold of the dust sensor corresponding to the acquired rotation speed of the fan with reference to the dust threshold management table; A procedure for comparing the dust sensor value with the dust threshold; a procedure for stopping the fan using the fan control unit when the dust sensor value is larger than the dust threshold; and after stopping the fan. The procedure for notifying an error by the error notification unit; and the procedure for stopping the computer system after the notification of the error; are executed.

As another aspect of the present invention, a computer system covered with a housing having an intake port and an exhaust port has a main control unit for controlling the computer system; a dust state in the housing of the computer system. A dust sensor for monitoring; a fan for cooling the inside of the housing of the computer system; a fan control unit for controlling the fan; an error notification unit for notifying an error; the fan A storage unit that holds a dust threshold management table that stores the number of rotations of the dust sensor and the dust threshold of the dust sensor as a pair; the main control unit executes initialization of the main control unit at system startup. Initialization execution means;; dust sensor value acquisition means for acquiring the dust sensor value indicating the dust state from the dust sensor; dust threshold acquisition means for acquiring the dust threshold of the dust sensor; the dust sensor value and the above. A comparison means for comparing with the dust threshold; a fan stopping means for stopping the fan using the fan control unit when the dust sensor value is larger than the dust threshold; and an error notification after the fan is stopped. Includes an error notification means for notifying an error by a unit; a system stop means for stopping the computer system after the error notification; and a fan rotation speed acquisition means for acquiring the rotation speed of the fan from the fan control unit. Only, the dust threshold acquisition means acquires the dust threshold of the dust sensor corresponding to the acquired rotation speed of the fan with reference to the dust threshold management table .

According to the present invention, it is possible to avoid a system malfunction due to dust from the outside when the system is started.

It is a block diagram which shows the schematic structure of the computer system to which the system start-up control method which concerns on 1st Embodiment of this invention is applied. It is a block diagram which shows an example of the functional structure of the computer system shown in FIG. It is a flowchart which shows the flow of the control process at the time of system startup of the computer system shown in FIG. It is a block diagram which shows the schematic structure of the computer system to which the system start-up control method which concerns on 2nd Embodiment of this invention is applied. It is a figure which shows an example of the dust threshold value management table used in the computer system shown in FIG. It is a block diagram which shows an example of the functional structure of the computer system shown in FIG. It is a flowchart which shows the flow of the control process at the time of system startup of the computer system shown in FIG.

The features of the present invention will be described. In the present invention, in order to avoid system malfunction due to dust from the outside in a computer system, the start of the computer system is suppressed by monitoring the dust with a dust sensor during POST with firmware such as BIOS or UEFI at the time of system startup. It is characterized by doing.

Embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a block diagram showing a schematic configuration of a computer system 100 to which the system startup control method according to the first embodiment of the present invention is applied.

As shown in FIG. 1, the computer system 100 is covered with a housing 101. The housing 101 is provided with an intake port 101a and an exhaust port 101b. A dustproof filter is not attached to the intake port 101a shown in the figure.

The illustrated computer system 100 comprises, for example, a general purpose personal computer (PC). As shown in FIG. 1, the computer system 100 includes a CPU (Central Processing Unit) 110, a chip set 120, a BIOS (Basic Input / Output System) -ROM (Read-Only Memory) 130, a dust sensor 140, and a fan control unit 150. , Fan 160, error notification unit 170, RAM (Random Access Memory) 180, and external storage device 190. The chipset 120, BIOS-ROM 130, RAM 180, external storage device 190, error notification unit 170, dust sensor 140, and fan control unit 150 are electrically connected to each other via a connection line CL such as a bus line. ..

The CPU 110 is an arithmetic unit that realizes the control and functions of the computer system 100 by reading programs and data from the BIOS-ROM 130 and the external storage device 190, which will be described later, onto the RAM 180 and executing processing.

The RAM 180 is a volatile memory that temporarily holds programs and data read from the BIOS-ROM 130 and the external storage device 190, and is used as a work area of the CPU 110.

The BIOS-ROM 130 is a rewritable non-volatile memory for storing a module (described later) referred to when executing the BIOS or the BIOS. The non-volatile memory comprises, for example, EPROM (Erasable Programmed Read-Only Memory).

The external storage device 190 is a large-capacity, non-volatile storage device in which the stored contents can be rewritten, and is also called an internal storage. The illustrated external storage device 190 is composed of an HDD (Hard Disk Drive). The external storage device 190 stores programs and data such as an OS (Operating System) which is basic software, a boot loader used for booting an OS, and application software which operates on the OS and provides various functions. The external storage device 190 may be replaced with or together with an HDD, and may be composed of a rewritable non-volatile storage device such as an SSD (Solid State Drive).

The fan 160 is arranged inside the housing 101 near the intake port 101a. As the fan 160 rotates, air flows from the intake port 101a toward the exhaust port 101b. The fan control unit 150 is a unit for controlling the operation of the fan 160.

The dust sensor 140 is a sensor that detects the dust state in the housing 101. As the dust sensor 140, various methods such as a method using an optical sensor, a light absorption method, and a piezoelectric balance method may be adopted.

The error notification unit 170 is a unit that notifies the outside that an error has occurred. For example, the error notification unit 170 displays a warning message on a display (not shown), emits an alarm sound, or notifies that an error has occurred by lighting a lamp.

As described above, the chipset 120 is a part of a PC attached to a motherboard (not shown), and controls the CPU 110, RAM 180, BIOS-ROM 130, external storage device 190, various interfaces, and the like by connecting them to each other. do. In addition to the chipset 120, the CPU 110, RAM 180, and BIOS-ROM 130 are also mounted on the motherboard.

As shown in FIG. 1, the BIOS-ROM 130 includes a dust sensor monitoring module 131, a fan control module 132, an error notification module 133, and a dust threshold setting module 134 as the modules.

The dust sensor monitoring module 131 is for monitoring the dust sensor 140 and acquiring the dust state detected by the dust sensor 140. The fan control module 132 issues a control command to the fan control unit 150. The error notification module 133 is for causing the error notification unit 170 to notify the error. The dust threshold setting module 134 is for setting a dust concentration threshold value (hereinafter, also simply referred to as “dust threshold value”) allowed in the computer system 100.

In the computer system 100, when the system is started, the CPU 110 fetches the BIOS from the BIOS-ROM 130 to the RAM 180 and starts the BIOS. As described above, the fact that the CPU 110 executes the BIOS will be described as executing the BIOS.

The BIOS initializes and monitors the dust sensor 140 by using the dust sensor monitoring module 131 built in the BIOS-ROM 130. The dust threshold value monitored by the dust sensor 140 is managed by the dust threshold value setting module 134. Further, the BIOS uses the fan control module 132 built in the BIOS-ROM 130 to initialize, monitor, and control the fan control unit 150. Further, the BIOS uses the error notification module 133 built in the BIOS-ROM 130 to initialize the error notification unit 170 and notify the error.

Subsequently, the functional configuration of the computer system 100 will be described with reference to FIG. As shown in FIG. 2, the computer system 100 includes a main control unit 200, a dust sensor 140, a fan control unit 150, a fan 160, an error notification unit 170, and an external storage device 190.

The main control unit 200 controls each component of the computer system 100. The main control unit 200 includes, for example, a combination of the CPU 110, the chipset 120, the BIOS-ROM 130, and the RAM 180 shown in FIG.

Functionally, the main control unit 200 is functionally from the initialization execution means 210, the dust sensor value acquisition means 220, the dust threshold value acquisition means 230, the comparison means 240, the fan stop means 250, the error notification means 260, and the system stop means 270. Become.

The initialization execution means 210 executes initialization of the main control unit 200. The dust sensor value acquisition means 220 acquires a dust sensor value indicating a dust state from the dust sensor 140. The dust threshold value acquisition means 230 acquires the dust threshold value of the dust sensor 140 set in the dust threshold value setting module 134. The comparison means 240 compares the dust sensor value with the dust threshold. The fan stopping means 250 uses the fan control unit 150 to stop the fan 160 when the dust sensor value is larger than the dust threshold value. The error notification means 260 causes the error notification unit 170 to notify an error after the fan 160 is stopped. The system stop means 270 stops the computer system 100 after notifying the error.

Next, the control process at the time of system startup executed by the main control unit 200 of the computer system 100 will be described with reference to the flowchart shown in FIG.

First, when the computer system 100 is started, the CPU 110 reads the BIOS from the BIOS-ROM 130 into the RAM 180 and starts the BIOS (main control unit) 200.

The initialization execution means 210 of the BIOS (main control unit) 200 implements the initialization of the CPU 110 and the chipset 120 (step S101). After that, the initialization execution means 210 of the BIOS (main control unit) 200 activates the dust sensor monitoring module 131, the fan control module 132, and the error notification module 133 (step S102). After starting each module, the BIOS (main control unit) 200 initializes the dust sensor 140 with the dust sensor monitoring module 131, initializes the fan control unit 150 with the fan control module 132, and performs error notification module 133. Initializes the error notification unit 170 in (step S103).

After the initialization of the dust sensor 140 is completed, the dust sensor value acquisition means 220 of the BIOS (main control unit) 200 acquires the dust state from the dust sensor 140 in order to confirm the dust state of the intake port 101a of the housing 101 (. Step S104).

Further, the dust threshold value acquisition means 230 of the BIOS (main control unit) 200 acquires the dust threshold value of the dust sensor 140 managed by the dust threshold value setting module 134 (step S105). The dust concentration threshold (dust threshold) managed by the dust threshold setting module 134 can be changed in the BIOS setup menu or the like, and the setting can be changed depending on the dust environment.

After that, the comparison means 240 of the BIOS (main control unit) 200 determines whether or not the acquired value (dust sensor value) of the dust sensor 140 exceeds the dust concentration threshold value (dust threshold value) (step S106).

When the dust center value is larger than the dust threshold value and an abnormal dust concentration is detected (Yes in step S106), the fan stop means 250 of the BIOS (main control unit) 200 sets the fan stop to the fan control unit 150 by the fan control module 132. To stop the fan 160 (step S107).

After that, the error notification means 260 of the BIOS (main control unit) 200 notifies the error notification unit 170 of the dust concentration error by the error notification module 133 (step S108).

Finally, the system stop means 270 of the BIOS (main control unit) 200 stops the computer system 100 (step S109).

On the other hand, when the dust center value is equal to or less than the dust threshold value and no dust concentration abnormality is detected (No in step S106), the BIOS (main control unit) 200 continues the process (step S110).

Next, the effect of the first embodiment will be described.

The first effect is that the malfunction of the computer system 100 due to dust can be avoided by suppressing the activation by the dust sensor 140 when the system is started.

The second effect is that it is not necessary to mount a dustproof filter on the intake port 101a, so that the cooling inside the apparatus is not affected.

[Second Embodiment]
FIG. 4 is a block diagram showing a schematic configuration of a computer system 100A to which the system startup control method according to the second embodiment of the present invention is applied.

The illustrated computer system 100A has and operates in the same configuration as the computer system 100 shown in FIG. 1, except that the configuration (function) of the BIOS-ROM is changed as described later. Therefore, a reference code of 130A is attached to the BIOS-ROM. Those having the same functions as those shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted for the sake of brevity.

Referring to FIG. 4, the BIOS-ROM 130A includes a dust threshold management table 135 instead of the dust threshold setting module 134.

Referring to FIG. 5, in the dust threshold value management table 135, a plurality of tables in which the fan rotation speed and the dust threshold value are paired are prepared. Therefore, the BIOS-ROM 130A functions as a storage unit that holds the dust threshold value management table 135 that stores the rotation speed of the fan 160 and the dust threshold value of the dust sensor 140 as a pair.

Subsequently, the functional configuration of the computer system 100A will be described with reference to FIG. The illustrated computer system 100A has and operates in the same configuration as the computer system 100 shown in FIG. 2, except that the configuration (function) of the main control unit is changed. Therefore, a reference code of 200A is attached to the main control unit. Those having the same functions as those shown in FIG. 2 are designated by the same reference numerals, and the description thereof will be omitted for the sake of brevity.

Referring to FIG. 6, the main control unit 200A has and operates in the same configuration as the main control unit 200 shown in FIG. 2, except that the fan rotation speed acquisition means 280 is further provided. The fan rotation speed acquisition means 280 acquires the rotation speed of the fan 160 from the fan control unit 150.

Next, with reference to the flowchart shown in FIG. 7, the control process at the time of system startup executed by the main control unit 200A of the computer system 100A will be described.

As shown in FIG. 7, the main control unit 200A operates in the same manner as that shown in FIG. 3, except that steps S120 and S121 are executed instead of step S105 shown in FIG.

As described above, in the first embodiment, the dust threshold value acquisition means 230 of the BIOS (main control unit) 200 has acquired the dust threshold value of the dust sensor 140 set in the BIOS setup menu (step S105 in FIG. 3). reference).

In the second embodiment, instead, the fan rotation speed acquisition means 280 of the BIOS (main control unit) 200A acquires the fan rotation speed from the fan control unit 150 (step S120). Subsequently, the dust threshold value acquisition means 230 of the BIOS (main control unit) 200A acquires the dust threshold value for the acquired fan rotation speed with reference to the dust threshold value management table 135 (step S121).

After that, the comparison means 240 of the BIOS (main control unit) 200A compares the dust sensor value with the dust threshold value acquired from the dust threshold value management table 135, and determines the dust abnormality (step S106).

Thereby, in the second embodiment, it is possible to automatically switch the dust threshold value according to the fan rotation speed without manually setting the threshold value of the dust sensor using the BIOS setup menu.

Next, the effect of the second embodiment will be described.

In addition to the first and second effects, the third effect is that the dust threshold can be automatically switched.

Although the embodiments of the present invention have been described above, the present invention is not limited thereto. For example, the present invention also includes a form in which a part or all of the embodiments described above are appropriately combined, and a form in which the embodiment is appropriately modified.

In the above embodiment, the intake port 101a of the housing 101 is not provided with the dustproof filter, but the dustproof filter may be attached to the intake port 101a.

Further, in the above embodiment, the BIOS has been described as an example of the firmware executed when the computer systems 100 and 100A are started, but the present invention is not limited to this, and the function of controlling the hardware of the computer systems 100 and 100A is not limited thereto. It suffices to be provided with. For example, the firmware may be UEFI (Unified Extensible Firmware Interface).

In the above embodiment, for example, the control program executed by the main control units 200 and 200A of the computer systems 100 and 100A is stored in the BIOS-ROM 130 and 130A in advance. However, the present invention is not limited to this, and by implementing a control program for executing the above-mentioned various processes on an existing general-purpose computer, a framework, a workstation, or the like, the computer system according to the above embodiment. It may function as a device corresponding to 100, 100A.

The method of providing such a program is arbitrary, and is stored and distributed in, for example, a computer-readable recording medium (flexible disc, CD (Compact Disc) -ROM, DVD (Digital Versatile Disc) -ROM) or the like. Alternatively, the program may be stored in a storage on a network such as the Internet and provided by downloading the program.

INDUSTRIAL APPLICABILITY The present invention can be applied to an application for suppressing a malfunction of a device due to dust in a device environment in which a dustproof filter is not mounted.

100, 100A Computer system 101 Housing 101a Intake port 101b Exhaust port 110 CPU
120 Chipset 130, 130A BIOS-ROM
131 Dust sensor monitoring module 132 Fan control module 133 Error notification module 134 Dust threshold setting module 135 Dust threshold management table 140 Dust sensor 150 Fan control unit 160 Fan 170 Error notification unit 180 RAM
190 External storage device (internal storage)
200, 200A Main control unit 210 Initialization execution means 220 Dust sensor value acquisition means 230 Dust threshold acquisition means 240 Comparison means 250 Fan stop means 260 Error notification means 270 System stop means 280 Fan rotation speed acquisition means

Claims (6)

It is a system startup control method that is executed in a computer system that is covered with a housing that has an intake port and an exhaust port when the system starts up.
The computer system is
The main control unit for controlling the computer system and
A dust sensor for monitoring the dust state in the housing of the computer system, and
A fan for cooling the inside of the housing of the computer system and
A fan control unit for controlling the fan,
An error notification unit for notifying errors and
Equipped with
The system startup control method is as follows.
The step of executing the initialization of the main control unit and
The step of acquiring the dust sensor value indicating the dust state from the dust sensor, and
The step of acquiring the dust threshold value of the dust sensor and
A step of comparing the dust sensor value with the dust threshold value,
When the dust sensor value is larger than the dust threshold value, the step of using the fan control unit to stop the fan, and the step of stopping the fan.
After the fan is stopped, the step of notifying an error by the error notification unit, and
After notifying the error, the step of stopping the computer system and
System boot-time control methods, including. It is a system startup control method that is executed in a computer system that is covered with a housing that has an intake port and an exhaust port when the system starts up.
The computer system is
The main control unit for controlling the computer system and
A dust sensor for monitoring the dust state in the housing of the computer system, and
A fan for cooling the inside of the housing of the computer system and
A fan control unit for controlling the fan,
A storage unit that holds a dust threshold management table that stores the number of rotations of the fan and the dust threshold of the dust sensor as a pair.
An error notification unit for notifying errors and
Equipped with
The system startup control method is as follows.
The step of executing the initialization of the main control unit and
The step of acquiring the dust sensor value indicating the dust state from the dust sensor, and
A step of acquiring the rotation speed of the fan from the fan control unit,
With reference to the dust threshold value management table, a step of acquiring the dust threshold value of the dust sensor corresponding to the acquired fan rotation speed, and
A step of comparing the dust sensor value with the dust threshold value,
When the dust sensor value is larger than the dust threshold value, the step of using the fan control unit to stop the fan, and the step of stopping the fan.
After the fan is stopped, the step of notifying an error by the error notification unit, and
After notifying the error, the step of stopping the computer system and
System boot-time control methods, including. It is a system startup control program for executing a computer system covered with a housing having an intake port and an exhaust port when the system starts up.
The computer system is
The main control unit for controlling the computer system and
A dust sensor for monitoring the dust state in the housing of the computer system, and
A fan for cooling the inside of the housing of the computer system and
A fan control unit for controlling the fan,
An error notification unit for notifying errors and
Equipped with
The system startup control program is applied to the computer.
The procedure for executing the initialization of the main control unit and
The procedure for acquiring the dust sensor value indicating the dust state from the dust sensor, and
The procedure for acquiring the dust threshold value of the dust sensor and
A procedure for comparing the dust sensor value and the dust threshold value, and
A procedure for stopping the fan by using the fan control unit when the dust sensor value is larger than the dust threshold value.
After the fan is stopped, the procedure for notifying an error by the error notification unit and
The procedure for stopping the computer system after the error is notified, and
A system startup control program that runs. It is a system startup control program for executing a computer system covered with a housing having an intake port and an exhaust port when the system starts up.
The computer system is
The main control unit for controlling the computer system and
A dust sensor for monitoring the dust state in the housing of the computer system, and
A fan for cooling the inside of the housing of the computer system and
A fan control unit for controlling the fan,
A storage unit that holds a dust threshold management table that stores the number of rotations of the fan and the dust threshold of the dust sensor as a pair.
An error notification unit for notifying errors and
Equipped with
The system startup control program is applied to the computer.
The procedure for executing the initialization of the main control unit and
The procedure for acquiring the dust sensor value indicating the dust state from the dust sensor, and
The procedure for acquiring the rotation speed of the fan from the fan control unit, and
With reference to the dust threshold value management table, a procedure for acquiring the dust threshold value of the dust sensor corresponding to the acquired fan rotation speed, and a procedure for acquiring the dust threshold value.
A procedure for comparing the dust sensor value and the dust threshold value, and
A procedure for stopping the fan by using the fan control unit when the dust sensor value is larger than the dust threshold value.
After the fan is stopped, the procedure for notifying an error by the error notification unit and
The procedure for stopping the computer system after the error is notified, and
A system startup control program that runs. A computer system that is covered with a housing that has an intake port and an exhaust port.
The main control unit for controlling the computer system and
A dust sensor for monitoring the dust state in the housing of the computer system, and
A fan for cooling the inside of the housing of the computer system and
A fan control unit for controlling the fan,
An error notification unit for notifying errors and
A storage unit that holds a dust threshold management table that stores the number of rotations of the fan and the dust threshold of the dust sensor as a pair.
Equipped with
The main control unit
Initialization execution means for executing initialization of the main control unit at system startup,
A dust sensor value acquisition means for acquiring a dust sensor value indicating the dust state from the dust sensor, and a dust sensor value acquisition means.
A dust threshold value acquisition means for acquiring the dust threshold value of the dust sensor, and a dust threshold value acquisition means.
A comparison means for comparing the dust sensor value and the dust threshold value, and
A fan stopping means for stopping the fan by using the fan control unit when the dust sensor value is larger than the dust threshold value.
An error notification means for notifying an error by the error notification unit after the fan is stopped,
A system stop means for stopping the computer system after the notification of the error, and
A fan rotation speed acquisition means for acquiring the rotation speed of the fan from the fan control unit,
Only including,
The dust threshold value acquisition means acquires the dust threshold value of the dust sensor corresponding to the acquired rotation speed of the fan with reference to the dust threshold value management table .
Computer system. The computer system according to claim 5 , wherein a dustproof filter is mounted on the intake port.

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